Features: Brand new and high quality Discover the flexibility to mix different keyboard switch experiences with our 2-hole, 3-hole, and 4-hole keycap tester. The convenient design allows for quick and easy testing of various keyboard switches, ensuring a realistic typing experience. Suitable for keyboard enthusiasts, gamers, and programmers who value precise feedback from their keyboards. Perfect for various environments including home, office, providing exceptional typing experience for types of mechanical keyboards. Take control of your typing experience with our detachable and easy-to-clean keyboard tester, allowing you to customize and optimize your keyboard. Specifications: Material: PBT Type:1/2/3/4/5/6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/ 25/26/27/28/29/30/31 Note: 1.Please allow 1-2cm error due to manual measurement, make sure you don't mind before ordering. 2.Due to the differences between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1x Keychain Switch Tester